The magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 50 rpm (revolutions per minute) if the wheel's diameter is 35 cm will be 3.89 m / s².
Magnitude is simply "distance or quantity" in the context of physics. In terms of motion, it shows the absolute or relative size, direction, or movement of an object. It is used to describe something's size or scope. Magnitude in physics typically refers to a size or quantity.
The formula we need is: A = V²/R
Centripetal acceleration = (speed)² / (radius) .
Also V = D / T Speed = (distance) / (time).
With everything in meters, kilograms, and seconds.
Circumference of the wheel = (π · diameter) = 0.35 π meters.
Speed = (0.35π m) x (45 / minute) x (1 minute / 60 sec)
= (0.35π · 45 / 60) m/sec
= 0.2625π m/sec
Any procedure where the velocity varies is referred to as acceleration. There are only two methods to accelerate because velocity is a function of both speed and direction: changing your speed, changing your direction, or changing both.
Acceleration = (speed²) / (radius)
= (0.2625π m/s)² / (0.175 m)
= (0.06890625π² / 0.175) m² / s²·m
= 3.89 m / s²
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2. The potential energy of an object depends on its _______.
Answer:
homboy it Position
Explanation:
Answer: i think position
Explanation:just thinking
HELP! PLEASE Show ALL the work, Thank you!
Jacque's velocity during the race segment is 3 meter/sec.
The direction of a body or object's movement is defined by its velocity. In its basic form, speed is a scalar quantity. In fact, velocity is a vector quantity. It has magnitude and direction both.
We are given that,
The time taken by Jacque = Δt = t₂ - t₁ = 7.0min - 3.5min = 3.5 min
The distance covered in race = Δx = x ₂- x₁ = 1260m - 630m = 630m
To get the velocity of the racer we can calculate by the equation,
V = Δx/ Δt
Here, Δx is the change in distance and Δt is the change in time of the racer. So putting the value in above equation for getting racer velocity,
V = 630m/3.5min
V = 180 m/min
V = 3 m/sec
Therefore , Jacque's velocity during the race would be 3 m/s.
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what true airspeed and angle of attack should be used to generate the same amount of lift as altitude is increased?
According to the given statement A higher true airspeed for any given angle of attack.
How do you determine angle of attack?The angle between both the wing and the direction of flight is known as the angle of attack. The angles of attack is also the angle between both the wing and the relative wind since the direction of flight is the opposite of the airflow.
What is the best angle of attack?The ideal launch angle is dependent on ball speed, according to physics. The ideal launch angle is around 15 degrees at ball velocities typical of most amateur players. The average launch angle of PGA Tour golfers is just over 11 degrees because to their faster ball speed.
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5. A 10 kg mass is lifted to a height of 2 m. What is its potential energy at this position? Given Formula
Substitution Answer (with units)
The potential energy at this position is 196 joules.
What is potential energy ?
potential energy stored in energy that depends upon to the relative position of the various parts of a system. A spring has more potential energy when it is the compressed or stretched. A steel ball has more potential energy raised above the ground than it has the after falling to Earth.
Sol-
m=10kg h=2m Ep=mgh Ep=(10kg)(9.8 m/sec2)(2m)
Ep=196J.
The formula for potential energy depends on the force acting on the two objects. For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.
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how would the accelerations you measured in this lab change if you were still moving the same small masses from one hanger to the other for each trial, but the total mass of the system was much larger? the measured accelerations would all be:
When the total mass of the system much larger then the measured accelerations would all be: halved.
In an Atwood's Machine, weight difference between the two hanging masses determines the net force acting on the system and this accelerates the hanging masses. Heavier mass is accelerated downward whereas the lighter mass is accelerated upward.
The second law states that the acceleration of an object depends on two variables that are: the net force acting on the object and the mass. The acceleration of an object depends directly on the net force acting on the object and inversely upon the mass.
F = m*a
Where, F denotes force, m is mass and a is acceleration. If force is doubled, acceleration also gets doubled whereas if the mass is doubled then acceleration becomes half.
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56.
A scientist is performing an experiment with an object falling in air. His hypothesis is that the time the object takes to fall will be directly proportional to the height from which the object is dropped; if this is true, a graph of fall time versus height will be a straight line. When he graphs his data, the graph is clearly curved, not a straight line. He decides that there must be an error in his measurements and concludes that the hypothesis should be accepted.
Explain how three of the four limitations of science apply to this experiment and to the scientist's conclusion.
The graphs of velocity vs time and acceleration versus time depict the motion of a falling object in a straight line.
The position-time graph depicts how the moving object's position has changed over time.
The displacement-time graph displays the position of the moving object over a time period. This graph shows how far the object has moved from its starting position over the course of time.The velocity-time graph demonstrates the speed of a moving item over a time period.The velocity-time graph, also known as an acceleration-time graph, displays how quickly a moving object changes its speed over time.With regard to the displacement-time graph of the velocity-time graph and the acceleration-time graph i.e. Only the velocity and acceleration of the falling object are depicted in these three graphs as straight lines.
Therefore, the graphs of velocity versus time and acceleration versus time represent the motion of a falling object on a straight line.
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A circuit calls for a 0.600 mm -diameter copper wire to be stretched between two points. you don't have any copper wire, but you do have aluminum wire in a wide variety of diameters.
The diameter of the required aluminum wire in place of copper wire is 0.772 mm.
We know, the resistance of the wire is given by,
R = pL/A
Where,
R is resistance,
p is the resistivity of the material,
L so the length of the wire,
A is the area of the wire.
The resistivity p₁ of copper is 1.6 x 10⁻⁸Ω.
The resistivity p₂ of copper is 2.65 x 10⁻⁸Ω.
The length of both the copper as well as the aluminum wire is L.
Let us say the area of copper wire is A₁ and that of aluminum is A₂.
So, for same resistance,
p₁L/A₁ = p₂L/A₂
p₁/A₁ = p₂/A₂
Area = πD²/4
So, we can write,
p₁/D₁² = p₂/D₂²
Putting the values,
1.6 x 10⁻⁸/(0.6)² = 2.65 x 10⁻⁸/D²
D₂ = 0.772 mm.
The diameter of the aluminum wire required is 0.772mm.
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Complete Question - A circuit calls for a 0.500 mm-diameter copper wire to be stretched between two points. You don't have any copper wire, but you do have aluminum wire in a wide variety of diameters.
a) What diameter aluminum wire will provide the same resistance?
consider a large truck carrying a heavy load, such as steel beams. a significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops suddenly in an accident or even in braking. assume, for example, that a 11,000 kg load sits on the flat bed of a 15,000 kg truck moving at 16.0 m/s. assume that the load is not tied down to the truck, but has a coefficient of friction of 0.450 with the flat bed of the truck. (a) calculate the minimum stopping distance for the truck for which the load will not slide forward relative to the truck.
Answer:
WOW are you a cool women?
osteoporosis is a condition that makes bones more
what is the moment of inertia of the object starting from rest if it has a final velocity of 5.8 m/s? express the moment of inertia as a multiple of mr2 , where m is the mass of the object and r is its radius.
The moment of inertia of the object as a multiple of MR² is 0.126 MR².
According to the law of conservation of energy he is always conserved at each and every point so going by this,
At the top will be equal to the energy at the bottom.
Because at the top there will be no kinetic energy and add the bottom there will be no potential energy the bottom there will be only kinetic energy and rolling energy.
So we can write,
Mgh = 1/2IW² +1/2MV²
Where,
M is the mass of the body,
G is acceleration due to gravity,
H is the height,
I is the moment of inertia,
W is angular velocity,
V is the linear velocity.
The height of the object is given to be 2.11 m. Final velocity is given to be 5.8m/s.
Now, putting all the values,
M(2.11)(9.8) = 1/2(IV²/R²) + 1/2MV²
I = 0.126MR²
Hence the moment of inertia of the object is 0.126MR².
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Complete question- an object rolls without slipping down a 2.1 m high incline.
What is the moment of inertia of the object starting from rest if it has a final velocity of 5.8m/s stress the moment of inertia as a multiple of MR² object and R is its radius.
A ball, thrown upward, initially loses speed due to downward free-fall__________. At the top of it’s trajectory, it momentarily stops, then increases its speed as it descends. Throughout, its acceleration is ___________.
A ball, thrown upward, initially loses speed due to downward free-fall. At the top of it’s trajectory, it momentarily stops, then increases its speed as it descends. Throughout, its acceleration is (g)= 9.8 m/s²
What is acceleration?A particular object has changed its velocity in a particular time. That ratio called the acceleration of the object. Example: A car starts its journey from rest and ends at 25 m/s velocity in 5 second interval. So the acceleration is = 25/5 = 5m/s²
How can we calculate the acceleration of the ball?According to the definition of the acceleration due to gravity, Whenever a particle or a object throw upwards some amount of force attract that object at the center of the earth that is called the gravity. For this gravity that produce a acceleration due to gravity. The value of acceleration due to gravity is 9.8 m/s².
According to the question a ball is thrown upwards, initially loses speed due to downward free-fall. This case happens for the gravity.
At the top of it’s trajectory, it momentarily stops, then increases its speed as it descends. This also happens for the gravity cause the ball always attract the ball at the center of the earth.
For this attraction the acceleration due to gravity generated. So its acceleration throughout the case is same as the acceleration due to gravity, that means = 9.8 m/s².
According to the conversation, we can conclude that, Throughout, its acceleration is (g)= 9.8 m/s²
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two tugboats pull a disabled supertanker. each tug exerts a constant force of 1.20×106 nn , one at an angle 10.0 ∘∘ west of north, and the other at an angle 10.0 ∘∘ east of north, as they pull the tanker a distance 0.880 kmkm toward the north.
The ideas of vector components and the work done are relevant to this question.
The total work done by the two tugboats on the supertanker is "2.03 x 10⁹ J".
First, we will calculate the force in the direction of the displacement. It will be the sum of the x- vector components of both the forces:
Fx = Fx1 +Fx2
Fx = Fcosθ₁+Fcosθ₂
where,
F = magnitude of forces = 1.2 x 10⁶ N
θ₁ = angle of the first boat with horizontal = 10°
θ₂ = angle of the second boat with horizontal = 10°
Therefore,
Fx=2(1.2 x 10⁶) (cos10)
Fx=2,361,600
Now, we will calculate the work done by the tugboats:
Work done = Fx × d
W = 2,316,600×880
W=2.03 x 10⁹ J
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A student rolls a ball along the floor so that the ball has a speed of 16m/s. What is the speed of the ball relative to a second student who is running at 6m/s in the same direction that the ball is rolling?
Answer:
on
Explanation:
when someone runs their hand is not really balanced when they wrote something
If a student rolls a ball along the floor so that the ball has a speed of 16 m / s , then the speed of the ball relative to a second student would be 10 m / s if the student is running at 6 m / s in the same direction that the ball is rolling.
What is Velocity?The total displacement covered by any object per unit of time is known as velocity.
If a student rolls a ball across the floor at a speed of 16 meters per second, the ball's speed in relation to a second student would be 10 meters per second if the second student is sprinting at a speed of 6 meters per second in the same direction as the ball is rolling.
Thus, the relative speed of the ball with respect to the student would be 10 m / s.
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Are there any exceptions to the rule that planets rotate with small axis tilts and in the same direction as they orbit the sun?.
Venus and Uranus are exception to these rules.
Venus rotates in the horizontal course when Uranus falls as it circles the solar on its aspect.Venus, like the different stars, at the beginning rotates anticlockwise however it nevertheless does.The exceptions are Venus and Uranus but they've what's called regressive rotation, rotating parallel to the solar's roster.
Uranus is the 7th planet from the sun. Its call is a connection with the Greek god of the sky, Uranus, who, in step with Greek mythology, turned into the exceptional-grandfather of Ares, grandfather of Zeus and father of Cronus. It has the third-largest planetary radius and fourth-largest planetary mass in the solar system.
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If X = 5 and Y = 3, what does Z equal?
Answer:
What is the figure? please provide
What is the velocity of a 1-kg ball that is dropped from a 50m height after free-falling
for 1 second?
Answer:
See below
Explanation:
Weight/mass of the object is irrelevant ( not needed)
v = at
= 9.81 m/s^2 * 1 s = 9.8 m/s
if you transmitted radio signals to the moon when it is 385,000 km from earth and waited to receive the echo, how long would you wait (in s)?
If you transmitted radio signals to the moon when it is 385,000 km from the earth and waited to receive the echo, then you have to wait 2.57 seconds.
What is Velocity?The total displacement covered by any object per unit of time is known as velocity.
As given in the problem if you transmitted radio signals to the moon when it is 385,000 km from the earth and waited to receive the echo,
The speed of light = 3 × 10⁸ m /s
The distance traveled by the radio waves = 2 × 385,000 × 1000
= 770000000 meters
The time of the echo = 770000000 / 3 × 10⁸
= 2.57 seconds
Thus, you have to wait 2.57 seconds to receive the echo.
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Suppose we look at a photograph of many galaxies. assuming that all galaxies formed at the same time after the big bang, which galaxy appears to us as the youngest?
The galaxy appears to us as the youngest is the one that is farthest away.
Basically, a galaxy can be characterized as a collection (bunch) of numerous billions of stars, that are existing autonomously or by themselves.One of the foremost imperative characteristics of a universe is that it comprises billions of stars with diverse ages, extending from the most youthful star to the oldest. , a star that's closest to mankind is the most seasoned whereas the one that's most remote absent is the youngest. While we assume that we look at a photograph of many galaxies. assuming that all galaxies formed at the same time after the big bang, So it can be concluded that the star that is the closest to us is the oldest one while the more distant star is the more youthful it is.
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According to the nebular theory of solar system formation, which law best explains why the solar nebula spun faster as it shrank in size?.
The law of conservation of angular momentum.
What is angular momentum?
Angular momentum is the rotational analog of linear momentum in physics. It is a conserved quantity, meaning the total angular momentum of a closed system remains constant. Both the direction and magnitude of angular momentum are conserved.
What is the law of conservation of angular momentum?
The law of conservation of angular momentum asserts that a system's total angular momentum is conserved when there is no external torque present. In other words, the magnitude and direction of the total angular momentum of an isolated system remain constant.
According to the Nebular Theory, the solar system originated as a massive, slowly rotating cloud of gas measuring around one light-year in diameter. As the cloud cooled, its own gravity caused it to collapse. It distorted into a revolving pancake shape due to the conservation of angular momentum, which required it to spin faster as it shrank.
Hence, the law of conservation of angular momentum best explains why the solar nebula spun faster as it shrank in size.
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a car traveling at 27 m/s hits a tree. if the front end of the car is 1.2 meters, what is the acceleration rate of the car.
The acceleration rate of the car travelling at 27m/s in 1.2metres is 303.8m/s².
How to calculate acceleration?Acceleration of a body refers to the amount by which a speed or velocity increases. The acceleration of a moving body can be calculated using one of the equation of motion as follows:
v² = u² + 2as
Where;
v = final velocityu = initial velocitya = accelerations = distanceAccording to this question, a car traveling at 27 m/s hits a tree. if the front end of the car is 1.2 meters, the acceleration rate of the car can be calculated as follows:
27² = 0² + 2(a)(1.2)
729 = 2.4a
a = 303.8m/s²
Therefore, 303.8m/s² is the acceleration of the car.
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)since individual stars can live from millions to billions of years, how can observations taken at the current time tells us about stellar evolution?
A nebula is a cloud of gas and dust that gives rise to stars. The lone star can shine on its own for a very long time. They are not everlasting, despite the fact that they shine for a very long period. These observations allow us to examine the inside of stars of various ages, each of which has a unique interior temperature and set of circumstances.
How do stars develop?In frigid clouds of gas and dust, stars form. Because dust is particularly opaque to optical and ultraviolet light, neither wavelength will get through the star-forming zone. Although less opaque than dust, gas remains opaque nonetheless. (b) Infrared, microwave, and radio wavelengths all easily penetrate dust. Additionally, dust scatters IR wavelengths to UV-optical light, which makes newborn stars and other dusty objects even luminous in the IR. Atomic and molecular gas that is cool (T 50 k) and dense is visible in the IR and also emits line radiation in the submm and radio.
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Use the information in the table to identify the metal with a volume of 1.375 cm3.
By using the information in the table (see attachment), the metal with a volume of 1.375 cm³ is zinc.
What is density?Density simply refers to a ratio of mass to the volume of a physical object such as a metal, gray cube, or tennis ball. Mathematically, the density of a physical object can be calculated by using this formula:
Density = M/V
Where:
M represents the mass of a physical substance or object.V represents the volume of a physical substance or object.Making volume the subject of formula, we have:
Volume = Mass/Density
For the metal aluminum, we have:
Volume = 4.60/2.70
Volume = 1.70 cm³.
For metal zinc, we have:
Volume = 9.81/7.13
Volume = 1.375 cm³.
For metal chromium, we have:
Volume = 6.24/6.18
Volume = 0.87 cm³.
For metal nickel, we have:
Volume = 3.17/8.90
Volume = 0.36 cm³.
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An Atwood machine consists of 40-kg object A and 43-kg object B. Suppose
object A is released from rest. Determine the magnitude of the acceleration for
both objects. Assume the rope and pulley are massless.
Help
The magnitude of the acceleration for both objects is 0.36 m/s².
Acceleration is the name we supply to any system wherein the velocity modifications. for the reason, that velocity is a velocity and a path, there are only methods in order to accelerate: trade your velocity or exchange your path or exchange each.
Acceleration is the fee of alternating of the velocity of an object with recognition to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by means of the orientation of the internet pressure acting on that object.
Uniform acceleration, non-uniform acceleration, and average acceleration are the three varieties of multiplied motions. The term uniform acceleration refers to a motion in which an object travels in an immediate line with an increase in velocity at the same intervals of time.
calculation:-
mass 1 = 43 kg
F₁ = 430 N
mass 2= 40 kg
F₂ = 400 N
Tension = (F₁m₂ + F₂m₁)/ m₁ + m₂
= (430 × 40 + 400 × 43) / 83
=34400 /83
= 414.46 N
a = (F₁ - F₂)/ toatl mass
= 430 N - 400N / 83
= 0.36 m/s²
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A stunt driver needs to drive off the roof of a 20 meter building. He can only reach 4 m/s on the roof. Where should we put the safety pad for him to land on?
A circuit with a battery, a 14 Ω resistor, and a 17 Ω resistor, in parallel. The total current is the system is 2.8 A. What is the voltage of the battery?
Given data:
* The total current in the system is I = 2.8 A.
* The resistance of resistors connected in parallel is,
[tex]\begin{gathered} R_1=14\text{ ohm} \\ R_2=17\text{ ohm} \end{gathered}[/tex]Solution:
The equivalent resistance of the system is,
[tex]\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}[/tex]Substituting the known values,
[tex]\begin{gathered} \frac{1}{R_{eq}}=\frac{1}{14}+\frac{1}{17} \\ \frac{1}{R_{eq}}=\frac{17+14}{14\times17} \\ R_{eq}=\frac{14\times17}{17+14} \\ R_{eq}=7.68\text{ ohm} \end{gathered}[/tex]According to Ohm's law, the voltage across the battery in terms of the current and equivalent resistance is,
[tex]\begin{gathered} V=IR_{eq} \\ V=2.8\times7.68 \\ V=21.5\text{ volts} \end{gathered}[/tex]Thus, the voltage across the battery is 21.5 volts.
pleaseee help im struggling a lottt
Answer:
d=s/t
Explanation:
s=d/t
/t /t
s/t=d
Hope this helps
Choose the statements that accurately describe the feeding relationships in this food web. Check all that apply.
The otter is a secondary consumer.
The frog is a secondary consumer.
The algae are producers.
The flies are primary consumers.
The snails are primary consumers.
The heron is a secondary consumer.
The algae are producers. The otter is a secondary consumer, frog is a secondary consumer. The flies are primary consumers, snails are primary consumers and heron is a secondary consumer. All statements are correct.
What is a food web?A food web is basically a graphical representation of animals eating each other in an ecological community that is formed by the natural interconnection of food chains.
Sea otters are secondary consumers that hunt sea urchins in the kelp forest. A secondary consumer is the great blue heron. It can be eaten by the food web's tertiary consumer.
Snails are herbivores, which means they only eat plants, and thus fit into the food web as primary consumers.
Herbivores are always the primary consumers, and omnivores can be the primary consumers when eating plants. Rabbits, bears, giraffes, flies, humans, horses, and cows are examples of primary consumers.
Thus, all the given statements are correct.
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The gravitational force beyween two objects is 2000 N. The mass of the objects is reduced to one-third of its original mass
A 1520 kg car accelerates at a rate of
1.50 m/s². What is the net force on the car?
Answer:
Your answer is F = 2280 N
Explanation:
The formula for force is [tex]F=ma[/tex]. Given this formula, [tex]1520[/tex] × [tex]1.5[/tex] [tex]= 2280[/tex]
A coin is dropped from a height of 80 m. How fast will it fall, just before it hits the ground? [Take g = 10 m/s2 , Hint: For a falling body, the total PE at the greatest height will be equal to the K.E., just before it touches the ground]
The speed of the coin just before it hits the ground dropped from a height of 80 m will be 40 m / s
The total PE at the greatest height = The K.E just before it touches the ground
PE = m g h
KE = 1 / 2 * mv²
PE = Potential energy
KE = Kinetic energy
m = Mass
g = Acceleration due to gravity
h = Height
v = Final velocity
h = 80 m
g = 10 m / s²
PE = KE
m g h = 1 / 2 * mv²
m * 10 * 80 = 1 / 2 * m * v²
v² = 800 * 2
v = √ 1600
v = 40 m / s
Potential energy is the energy at rest and kinetic energy is the energy in motion. Potential energy is maximum at rest and when the object starts to move, it potential energy drops and it kinetic energy rises.
Therefore, the speed of the coin just before it hits the ground is 40 m / s
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